. Contributions from the New York Botanical Garden. Plants. Leafy hranchof Fouquifrt'a macdougalii, showing manner of casting of leaves, and forma- tion of spines. chlorophyllose, with many marked transpiratory adap- tations of the epidermis. The cortical tissues of the stems are sometimes palisaded after the manner of leaves. The spines of this group are generally atrophied branches. Not all plants which share the above characteristics form spines however. Koeberlinia, Holacantha enioryi, and Ephedra may be offered as representatives of the group. (Fig. 5.) V. Perennials with regular f

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. Contributions from the New York Botanical Garden. Plants. Leafy hranchof Fouquifrt'a macdougalii, showing manner of casting of leaves, and forma- tion of spines. chlorophyllose, with many marked transpiratory adap- tations of the epidermis. The cortical tissues of the stems are sometimes palisaded after the manner of leaves. The spines of this group are generally atrophied branches. Not all plants which share the above characteristics form spines however. Koeberlinia, Holacantha enioryi, and Ephedra may be offered as representatives of the group. (Fig. 5.) V. Perennials with regular foliar organs protected by varnish, wax. Fig. 4. Ephedra sp. growing in gypsum, White Sands, New Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York Botanical Garden. New York : The Garden

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectplants, bookyear1899